math
a computer is being lowered into the ocean from a platform. at this moment it is 210 feet below surface and being lowered 150 feet every 30 minutes. how to write this in the form of an expression?August 17, 2014

ENGLISH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
answer: Christina and Christopher worked together and completed a project about astronomy. Sentence structure is correct. Jennifer and her brother were not allowed to go to Great Adventure with the Jones family. Sentence contains a compound subject and a compound predicate. ...August 3, 2010

ENGLISH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Read each sentence. Select the BEST option that describes the sentence. Some options will define a structural flaw and may or may not suggest a way of fixing the problem. Some sentences have correct structure, and you may find that is the best option. Christina and ...August 3, 2010